PDF static analysis report

Static analysis result for SHA-256 4cef9aaf6d9b1e24…

SUSPICIOUS

PDF

33.1 KB Created: 2020-11-08 22:30:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e7cf606c0e8d73fa79d1782e9f69218c SHA-1: 21c957decb33f89e4719cf518f32386ac64be49b SHA-256: 4cef9aaf6d9b1e24a7f46b1b16a4adbcdc94324071a34811369ee83f7da4f7be
36 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffine.ru/123?keyword=amoeba+sisters+video+recap+answers+cells PDF link annotation
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/pazoxepitefixav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444852/normal_5fa0f48517154.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386363/normal_5f8ca6e800237.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370076/normal_5f8ea9dab9f90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385202/normal_5f97212cc14c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417543/normal_5f987903b33d4.pdfIn PDF document text
    • https://jezulusawuse.weebly.com/uploads/1/3/4/0/134000263/nagitozefit-neruxe-fogaxaxebi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385038/normal_5fa303caf1b06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369494/normal_5f888f3014735.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b6bb494-4695-4959-8bf0-e098e17c7ca7/2168373497.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/64589270130.pdfIn PDF document text
    • https://s3.amazonaws.com/dudurat/millennium_3d_chess_rules.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71477460-1659-4ec8-915f-032d0a43a4f3/la_chvre_de_monsieur_seguin_ce2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d86a6d57-2908-4558-b8a4-5c0929dde211/civilization_6_android_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0aeca5c7-9c89-4ac5-802f-1423d863ef70/budewu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45CC 5500 bytes
SHA-256: 0f2b2a746ebfec220bacb25928d5dc45a7e9b42c65552cc6366f138f93910d05
font_01_sfnt_off00005876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5876 9104 bytes
SHA-256: a8770e9a78d05590202a8e08e14c91c93bdcf35da80bf265e79abfdd2e0d7625